An important note not mentioned on the ERA site is that you have right and left hand threads on the tri-wings. The right side of the car has left hand threads and vise-vers.
You need to angle the wire so that the tri-wing cannot loosen. If you do it the wrong direction the nut can loosen a good ways before the wire will catch it.
Here's a picture of the passenger (right hand) side of a car (left hand threaded side).
Note the direction the wire pulls.
